Vein catheter with lengthwise grooved needle
CA 1051304 A · Owner: Boehringer Ingelheim G.M.B.H. · Inventors: Nordstrom, Cai G.R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vein catheter device is disclosed in which a hollow pointed needle for puncturing a vein is disposed axially in a catheter. The device is fitted with a connector providing an inlet for transfusion liquid into the catheter. An adaptor is used for connection of the inlet to a reservoir of transfusion liquid. The hollow needle passes through a self-sealing closure of the connector through which closure the needle can be withdrawn after vein puncture. In addition to passing transfusion liquid into the catheter a further liquid, such as a medicament solution may be passed into the catheter through the self-sealing closure without interupting the transfusion.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 27, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 27, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.